I liked all the features of the Astra-777,i dont have to carry two remotes i can still unlock lock open trunk and still have a panic button. I am a master auto tech for me i had no problems with wiring in all relays for all accessories for horn lights trunk release ect. The other is what i called the smart remote if you misplace you keys hit the call button(set of back up keys is nice to have) and the remote beeps till you find it. Only one problem i found with smart remote is battery cover would get knocked off easy. The tech help line was very helpful on one question i had. If i had to buy another alarm i would buy another astra 777.